Wavelength variable laser light source

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	Wavelength variable laser light source
其他题名	Wavelength variable laser light source
	TSUDA HIROYUKI; KUROKAWA TAKASHI; HIRABAYASHI KATSUHIKO; NOTOMI MASAYA
	1992-05-15
专利权人	NIPPON TELEGR & TELEPH CORP
公开日期	1992-05-15
授权国家	日本
专利类型	发明申请
摘要	PURPOSE:To obtain a wavelength variable laser light source which can be driven by a low voltage, stably operated, facilitated in reduction in size and weight, swept in a wide wavelength range at a high speed and suppressed in a mode hopping by employing a variable wavelength filter between a lens and a mirror. CONSTITUTION:A laser diode chip 101 with a reflective coating on one emission end face; a lens 102 for colimating light from the coated side; a variable wavelength filter 103 of a laminate structure including a glass board, a transparent electrode, a high reflection mirror, an oriented film, a liquid crystal, an oriented film, a high reflection mirror, a transparent electrode and a glass board; and a convex or plain mirror 104 are sequentially disposed in the direction of the light irradiation. The filter 103 is inclined from an axial perpendicular to an optical axis. Thus, a mechanically movable section is eliminated. A wavelength variable laser light source which can be stably driven with a low voltage, swept in a wide wavelength range at a high speed, suppressed in a hopping mode and reduced in size and weight, is obtained.
其他摘要	目的：获得波长可变的激光光源，可以通过低电压驱动，稳定操作，有利于减小尺寸和重量，在宽波长范围内高速扫描并通过采用变量抑制模式跳变镜头和镜子之间的波长滤波器。组成：激光二极管芯片101在一个发射端面上具有反射涂层;透镜102，用于从涂覆侧产生光;层叠结构的可变波长滤波器103，包括玻璃板，透明电极，高反射镜，取向膜，液晶，取向膜，高反射镜，透明电极和玻璃板;在光照射方向上依次设置凸面或平面镜104。滤光器103从垂直于光轴的轴向倾斜。因此，消除了可机械移动的部分。本发明提供一种波长可变激光光源，其能够以低电压稳定地驱动，在宽波长范围内高速扫描，在跳跃模式下被抑制并且尺寸和重量减小。
申请日期	1990-10-03
专利号	JP1992142090A
专利状态	失效
申请号	JP1990263784
公开（公告）号	JP1992142090A
IPC 分类号	G02F1/13 \| G02F1/23 \| H01S5/00 \| H01S5/042 \| H01S3/18
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/89276
专题	半导体激光器专利数据库
作者单位	NIPPON TELEGR & TELEPH CORP
推荐引用方式 GB/T 7714	TSUDA HIROYUKI,KUROKAWA TAKASHI,HIRABAYASHI KATSUHIKO,et al. Wavelength variable laser light source. JP1992142090A[P]. 1992-05-15.

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